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From "Vladimir Avram (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-7560) 'nodetool repair -pr' leads to indefinitely hanging AntiEntropySession
Date Wed, 16 Jul 2014 23:23:05 GMT
Vladimir Avram created CASSANDRA-7560:

             Summary: 'nodetool repair -pr' leads to indefinitely hanging AntiEntropySession
                 Key: CASSANDRA-7560
             Project: Cassandra
          Issue Type: Bug
          Components: Core
            Reporter: Vladimir Avram

Running {{nodetool repair -pr}} will sometimes hang on one of the resulting AntiEntropySessions.

The system logs will show the repair command starting

 INFO [Thread-3079] 2014-07-15 02:22:56,514 (line 2569) Starting repair
command #1, repairing 256 ranges for keyspace x

You can then see a few AntiEntropySessions completing with:

INFO [AntiEntropySessions:2] 2014-07-15 02:28:12,766 (line 282) [repair
#eefb3c30-0bc6-11e4-83f7-a378978d0c49] session completed successfully

Finally we reach an AntiEntropySession at some point that hangs just before requesting the
merkle trees for the next column family in line for repair. So we first see the previous CF
being finished and the whole repair sessions hangs here with no visible progress or errors
on this or any of the related nodes.

INFO [AntiEntropyStage:1] 2014-07-15 02:38:20,325 (line 221) [repair #8f85c1b0-0bc8-11e4-83f7-a378978d0c49]
previous_cf is fully synced

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